Water-tube boiler.



R. DELAUNAY-BELLEVILLE.

WATER TUBE BOILER.

APPLICATION FILED JUNE so, 1913.

Patented J an 6, 1914,

Inventor. 7%21 COLUMBIA PLANOUIIAPH IO-,WASHINOTON, D- C.

UNIE STAS TET FFIQE.

ROBERT DELAUNAY-BELLEVILLE, OF ST.-DENIS, FRANCE, ASSIGNOR TO SOCIETE ANONYME DES ETABLISSEMENTS DELAUNAY-BELLEVILLE, OF ST.DE1\TIS,

FRANCE, A CORPORATION OF FRANCE.

WATER-TUBE BOILER.

Specification of Letters Patent.

Patented J an. 6, 19 14.

To all whom it may concern Be it known that I, ROBERT DELAUNAY- BELLEVILLE, citizen of the French Republic, residing at St.-Denis, Department of the Seine, in France, have invented certain new and useful Improvements in lVater-Tube Boilers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to water tube boilers in which a plurality of elements are employed, each of which comprises three or more water tube coils and their cooperating junction boxes.

The invention has particular reference to the construction of the lower front boxes and the means for connecting the boxes to the common feed pipe, whereby the employment of three tubes in each coil is rendered practical.

The object of the invention is to provide such lower front boxes and means for con necting the boxes to the feed pipe, whereby the water rises from the common feed pipe through the lower front boxes and to the three tubes of each coil in separate and in dependent streams, each tube of each box being in direct communication with the common feed pipe.

The invention is illustrated in the accompanying drawing, in which- Figure l is a sectional View of the improved form of lower front box taken on the line XX of Fig. 2; Fig. 2 is a vertical section of the improved box taken on the line Y-Y of Fig. 1; Fig. 3 is a transverse section taken on the line ZZ of Fig. 1; and Fig. 4 is a plan view of the socket employed for connecting the box with the common feed pipe, the box being removed.

Referring to the drawings, the box is denoted generally by the reference character 8, and the three water tubes associated with the box are designated by the numerals 1, 2 and 3, respectively. The box 8 is provided internally with partitions 7 dividing the box into three compartments, each of which communicates with one of the water tubes, as clearly shown in Fig. 2.

The boxes 8 are connected to the feed pipe or feed collector 4 by means of the sockets 5. The sockets 5 are also divided into three compartments or passages l, 2 and 3, by means of partitions 6 which constitute an insertible memberwhich may be positioned in the socket and divides the same into the three compartments by means of its radially directed vanes or partitions 6. The upper part of the socket 5 is preferably conical shaped and is engaged by a corresponding conical seat formed on the front box, as clearly shown in the drawings.

It will be seen from the foregoing construction that the fluid passing from the feed collector 4 into the front boxes will pursue three distinct and separate paths, and that each of the tubes associated with the box is fed directly from the feed collector in the same manner as if a separate lower box were provided for each tube. The space occupied by a box of the foregoing construction is much less than that which would be occupied by three separate boxes, and is even less than the space which would be occupied by three superposed boxes. Furthermore, with slight alterations, such as dividing the box into four compartments instead of three and providing four passages in the socket, four tubes can be employed without even increasing the height of the box.

Preferably, the passages 1, 2 and 3 formed by the member 6 in the socket are not equal, inasmuch as the coil to which tube 1 belongs generates more steam than the coil to which tube 2 belongs, and the latter coil in turn generates more steam than the coil to which tube 3 belongs. For these reasons, it is preferable to proportion the size of each passage in accordance with the quantity of steam generated in the corresponding coil.

What I claim is 1. In a water tube boiler in which three coils are employed to constitute an element, the combination with the lower tube of each of said coils and the feed collector, of a lower front box divided into three compartments, and means to place each of said compartments in direct and separate communication with said feed collector.

2. In a water tube boiler in which three coils are employed to constitute an element, the combination with the lower tube of each of said coils and the feed collector, of a lower front box, means to divide said box into three compartments communicating with the lower tubes of each coil, and means to connect said box with the feed collector, said means adapted to place said compartments of the box into direct and separate communication with the feed collector.

8. In a water tube boiler in which three coils are employed to constitute an element, the combination with the lower tube of each of said coils and the feed collector, of a lower front box, said boxes provided with internal partitions to divide the same into compartments which separately communicate with the lower tube of each coil, and means to place each of said compartments in direct and separate communication with the feed collector.

4. In a water tube boiler in which three coils are employed to constitute an element, the combination with the lower tube of each of said coils and the feed collector, of a lower front box, said boxes provided with internal partitions to divide the same into 5. In a boiler, the combination with three v lower tubes and the feed collector, of a lower front box having three separate compartment-s, each of which communicates with one of said tubes, said compartments being in separate and direct communication with said feed collector.

In testimony whereof I afiix my signature, in presence of two witnesses.

ROBERT DELAUNAY-BELLEVILLE. Witnesses:

HANSON C. Coxn, EMILE KLoTz.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G. 

